/Engine/Plugins/Runtime/Metasound/Source/MetasoundFrontend/Public/MetasoundFrontendDocumentModifyDelegates.h
typedef TMulticastDelegate_OneParam< void, const [FMetasoundFrontendInterface](API\Plugins\MetasoundFrontend\FMetasoundFrontendInterface) & > FOnMetaSoundFrontendDocumentMutateInterfaceArray